Will moving intake manifold cause P1416?

[eRiCdWoNg]

Check engine came on last night. I searched all about it and found out its the passenger air check valve and to get to it the intake manifold must be removed. Ironically, I just fixed my vaccuum line that goes to the AC Doors (I ran a new line cause the old one broke in the harness). I hate removing that manifold. It was not the first time I had removed the intake manifold, but the first time it actually gave me a code. I'm wondering if this has anything to do with me moving the manifold. I looked and felt around, didnt feel anything loose.

What does the check valve look like anyway? Any suggestions? Help!

 

[eRiCdWoNg]

Never mind, the CEL shut itself off. Hopefully it will not come back on.

 

[eRiCdWoNg]

Darn it, its back on. Guess I should change the check valve. It did show up as a C and H code last time I pulled it.